28857789

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1103}}^1$

素因数の和:1151

約数の個数: 40

約数和(自身を含む): 48090240

約数和(自身を除く): 19232451

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1103, 1377, 1539, 2907, 3309, 8721, 9927, 18751, 20957, 26163, 29781, 56253, 62871, 89343, 168759, 188613, 356269, 506277, 565839, 1068807, 1518831, 1697517, 3206421, 9619263, 28857789]

約数ペア:

[(1, 28857789), (3, 9619263), (9, 3206421), (17, 1697517), (19, 1518831), (27, 1068807), (51, 565839), (57, 506277), (81, 356269), (153, 188613), (171, 168759), (323, 89343), (459, 62871), (513, 56253), (969, 29781), (1103, 26163), (1377, 20957), (1539, 18751), (2907, 9927), (3309, 8721)]